from flask import Flask
from flask import render_template
app = Flask(__name__)
@app.route('/')
def hello_world():
    return 'Hello, World!'
@app.route('/echarts')
def hello_echarts():
    data_tast={"a":[1,2,3,4,5]}
    return render_template("index.html",data_number=data_tast)

if __name__ == '__main__':
    app.run(debug=True)